[gnome-settings-daemon] power: Add test_unindle_on_ac_plug()

[Bastien Nocera <hadess src gnome org>]

commit 7760c8ed6b70fdeeae7f1b72abfd94bd065541d3
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Jan 25 21:43:19 2013 +0100

    power: Add test_unindle_on_ac_plug()

 plugins/power/gsdpowerconstants.py |    1 +
 plugins/power/test.py              |   32 ++++++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+), 0 deletions(-)
---
diff --git a/plugins/power/gsdpowerconstants.py b/plugins/power/gsdpowerconstants.py
index 1e23b16..b2fb63c 100644
--- a/plugins/power/gsdpowerconstants.py
+++ b/plugins/power/gsdpowerconstants.py
@@ -10,3 +10,4 @@ SCREENSAVER_TIMEOUT_BLANK = 20;
 IDLE_DIM_BLANK_DISABLED_MIN = 60;
 IDLE_DELAY_TO_IDLE_DIM_MULTIPLIER = 4.0/5.0;
 MINIMUM_IDLE_DIM_DELAY = 10;
+POWER_UP_TIME_ON_AC = 10;
diff --git a/plugins/power/test.py b/plugins/power/test.py
index 21c7ae0..0f0605b 100755
--- a/plugins/power/test.py
+++ b/plugins/power/test.py
@@ -256,6 +256,21 @@ class PowerPluginTest(gsdtestcase.GSDTestCase):
         else:
             self.fail('timed out waiting for dim')
 
+    def check_undim(self, timeout):
+        '''Check that mode is set to normal in the given time'''
+
+        # wait for specified time to ensure it didn't do anything
+        while timeout > 0:
+            time.sleep(1)
+            timeout -= 1
+            # check that it requested normal
+            log = self.plugin_log.read()
+
+            if 'Doing a state transition: normal' in log:
+                break
+        else:
+            self.fail('timed out waiting for normal mode')
+
     def check_blank(self, timeout):
         '''Check that blank is requested.
 
@@ -620,5 +635,22 @@ class PowerPluginTest(gsdtestcase.GSDTestCase):
         # Drop inhibitor
         self.obj_session_mgr.Uninhibit(dbus.UInt32(inhibit_id))
 
+    def test_unindle_on_ac_plug(self):
+        idle_delay = round(gsdpowerconstants.MINIMUM_IDLE_DIM_DELAY / gsdpowerconstants.IDLE_DELAY_TO_IDLE_DIM_MULTIPLIER)
+        self.settings_session['idle-delay'] = idle_delay
+
+        # Wait for idle
+        self.check_dim(idle_delay + 2)
+
+        # Plug in the AC
+        self.obj_upower.Set('org.freedesktop.UPower', 'OnBattery', False)
+        self.obj_upower.EmitSignal('', 'Changed', '', [], dbus_interface='org.freedesktop.DBus.Mock')
+
+        # Check that we undim
+        self.check_undim(gsdpowerconstants.POWER_UP_TIME_ON_AC / 2)
+
+        # And wait a little more to see us dim again
+        self.check_dim(idle_delay + 2)
+
 # avoid writing to stderr
 unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout, verbosity=2))